Npdf api 6a temperature ranges

We specialize in valve and check valve sizes ranging from 2 x 2,000psi to 4 x 10,000psi, studded or flanged. This international standard is based on api spec 6a, seventeenth edition. We have a wide range of products api6a in stock or with excellent time delivery thru our networking manufacturing and. This international standard, which has been technically revised, is based on api spec 6a, nineteenth edition, july 2004 and its addendums and errata, and api spec 6av1, first edition, february 1996 and its errata, with the intent that the twentieth edition of api spec 6a will be identical to this international standard. Temperature classification operating range f t75 75 to 250 t20 20 to 250 t 0 0 to 250. Api 6 temperature class metal and metallurgy engineering. The latter represents more rigorous performance requirements. Operating temperatures gwc model e gate valves are available with api 6a temperature ratings of l 50o f through y 650o f. Api spec 16c specification for choke and kill sytems. Optional pressure temperature ratings for 6b flanges. This booklet covers the 21st edition with references to the 20 the edition. Status of the publication can be ascertained from the api standards department, telephone 202 6828000. Operation, maintenance, assembly and installation of the valveworks usa api 6a model m or msg gate valves. A thermal cycle involving heating to a suitable temperature, usually below the tempering temperature, holding long enough to reduce residual stresses from either cold deformation or thermal treatment, and.

While other standards do address the issue of fugitive emissions, the api standards have also attempted to address leak rates and other aspects of valve performance. Expanding gate the expanding gate is fieldreplaceable and provides a tight mechanical seat that does not. Specification for wellhead and christmas tree equipment. Agehardened nickelbased alloys for oil and gas drilling. Any mistake could result in toxic media escaping into the atmosphere, the ground, or a water supply. Valves for api temperature ratings of x and y are pressure derated as required per annex g of api 6a latest edition. For information on maintaining the api psl level, refer to api spec 6a.

As sealing capability doesnt rely on bodybonnet bolting, this configuration is fit for high temperature service. Low temperature, cryogenic valves kitz valves have been developed to meet the most advanced and demanding technological standards of japan, the worlds leading importer of environmentally friendly, cleanenergy lng liquefied natural gas. K 75 to 180 l 50 to 180 n 50 to 140 added to api 6a 19th ed. Api flanges flanges and studded blocks are designed and manufactured in accordance with the following specifications. Api 6a or api 6d design and construction as required as required as required face to face dimensions to api 6d and ansi b16. Spe cial range available on customer request and high temperature.

Size and pressure ranges that meet or exceed the requirements of api 6a, latest edition. Buyers should describe the equipment by terms and nominal size and pressure ratings appearing in api spec 6a. Spe cial range available on customer request and high temperature design api 6a annex g available. Api6a choke valve material trim service categories rating. A catalog of api publications and materials is published. The sarasinrsbd range of products is manufactured in accordance with asme, api and iso standards and. Also our ball valves are designed to meet fire safe requirements to bs6755, api 6fa and api 607. Materials selection for bolting american petroleum institute. Psl material control is found in api specification 6a, specification for wellhead and christmas tree equipment section 400 there are two performance requirement levels, pr1 and pr2. Api 6a specification for wellhead and christmas tree equipment. Gwc italia proven technology for individual valve solutions worldwide 4 valve trim chart nonnace trims nace trims api material class service trim corrosive available api temperature body bonnet gate seats stem bonnet seal ring studs nuts packing 1. A catalog of api publications and materials is published annually and updated quarterly by api, 1220 l street, n. Good heat treating practice american petroleum institute.

Slab gate valves bga type stem packing stem body bonnet gasket gate seat seat seal. Section 4a api 6a type 6b, 6bx flanges and studded crosses and tees. Highpressure high temperature hpht design guidelines may 8, 2015 houston, texas. The description for apv equipment consists of a general description, working pressure, temperature rating material class rating, product specification level psl and performance requirement pr. Api 6a globe valves are available in standard configuration or extended bonnet as well. Numerous environmental chambers largest measuring 2m w x 2m l x 3m d state of the art and built to test cells rated to 60,000psi. Operating temperatures model fs valves are available with api 6a temperature ratings of l 50 f through y 650 f. When using this rp, the api spec 6a psl level for api spec 6a 15th and later edition equipment is not maintained. We encourage you to follow recommendations in this booklet to attain the best possible service from our product, which is designed and proven to offer the service one can expect of a. Proven technology for individual valve solutions worldwide. Recommended tempering temperature ranges for a prescribed set of mechanical properties in a given carbon or low alloy steel are also readily available in many heat treating handbooks. Critical applications like these demand attention, and you can trust bonney forge api 6a valves to deliver. This ranges allow you to positively isolate both sides of the valve with a bubbletight seal, and vent any excess medium through a needle valve. Maximum temperature is the highest temperature that the equipment may experience.

Api 6a cra is a supplement to api 6a, covering a group of highperformance alloys specifically agehardened nickel alloys, which includes alloy 718, alloy 725 and alloy 925 as well as alloys 716, 935 and 945. Api 6a specification technical standard quality management. Special range available on customer request and high temperature design api 6a annex g available. The api standard committee on piping and valves has published some standards on fugitive emissions. Charpy impact test results provided as required by api temperature rating and material class. Solution annealed and aged in accordance with api 6a718. Kitz offers a series of cryogenic valves of proven high quality, as demonstrated by repeated testing. Api 6a says that a material is qualified for a temperature rating if the impact test is done at or below the lowerst temperature of the classification range. Eight temperature classes, each of which represent a range of. Material is stocked in three heat treatment conditions.

Alloy 718 data sheet quick facts we stock a comprehensive range of sizes between 12. The valves adopt expanding gate operating principal to give a tight and positive seal against both upstream and downstream seats under a wide range of pressures and environmental condition. In addition, when supplementary requirements sr2 and sr2a are specified in the purchase agreement, they shall only apply to the hose coupling. Uns n07718 alloy 718 related specifications api 6a 718 astm b637 uns n07718 alloy 718 is a high strength, corrosion resistant nickel chromium alloy designed to combine excellent strength with good fabrication characteristics. Iso 10423 was prepared by technical committee isotc 67, materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, sc 4, drilling and production equipment which was based on the prior api specification 6a, 17th edition.

Api specification 6a, 20th edition, specification for wellhead and christmas tree. Api temperature ratings x and y require working pressure of valve to be derated as per api 6a annex g. Specification for wellhead and christmas tree equipment 20th edition oct 2010 validation testingperformance requirement pr1 pr2 pressure temperature cycles force measurement openclose dynamic cycling at ambient temperature maximumminimum temperature cycling pressure temperature cycles. The current api 6a specification is a modified adoption of the english version of iso 10423. Product range api 6d api 6a size inmm pressure range size inmm pressure range service asme api 150 600 900 1500 2500 2000 3000 5000 0. Valves for api temperature ratings of x and y are pressure derated as required per annex g of api 6a 20th edition. G16c02 this specification establishes the minimum requirements.

How to specifiy api 6a pressure control equipment, what. Alloy 718 api is widely used in the oil and gas industry. Api 6a pressure ratings temperature ratings material applications for bodies, bonnets and end and outlet connections. These ratings are defined in the following api 6a tables. Minimum temperature represents the lowest ambient temperature that the. Api 6a applicable equipment wellhead equipment casing head housing casing head spools. Tempering of qtc may be processed separately in similar manner as stated in api specification 6a relating to temperature and time. It includes options for highpressure, critical processes, such as our xc range, which are all api 6a tested and manufactured in accordance with asme standards. Descriptions for each or all equipment items should also include. Temperature ratings indicate temperature ranges from a minimum ambient to a. Api 6a valves need to function in harsh environmental conditions where controlling the flow of volatile liquids and gases is critical.